Detachable Handle Mechanism for Surgical Retractor Blade
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Solution Overview
Problem
Conventional surgical retraction devices often encumber the operative site and limit access due to their design, requiring manual holding and lacking flexibility in positioning and detachment for unobstructed surgical access.
Innovation Solution
A retractor system with a handle that secures and positions a retractor blade, allowing for adjustable constraint and eventual detachment to provide less encumbered access, featuring a jointed arm with adjustable joints and a mechanism for securing and releasing the handle assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a conventional retractor device is used to retract anatomy and provide exposure, then the operative site is exposed, but the device encumbers the operative site and limits access
Solution Approach 1:
The retractor device is divided into separate components: a retractor blade for retracting anatomy and a detachable handle assembly for manipulation. This segmentation allows the blade to remain in place providing continuous exposure while the handle can be detached to improve access to the operative site.
Solution Approach 2:
The handle assembly is designed to be detachable from the retractor blade. After the blade is positioned to provide necessary exposure, the handle can be removed (taken out) from the system, eliminating the encumbrance while maintaining the exposure function through the blade alone or with other holding mechanisms.
2Stability of the object's composition
If a retractor device with fixed handle is used, then the blade can be securely positioned, but the device lacks flexibility in positioning and detachment for unobstructed access
Solution Approach 1:
The connection between the handle assembly and retractor blade transitions from a fixed static connection to a dynamic, controllable connection. The blade can be securely held when needed, and the handle can be detached when flexibility and unobstructed access are required, allowing the system to adapt to different surgical needs.
Solution Approach 2:
The retractor system is segmented into a blade portion and a handle assembly that can be independently positioned and detached. This segmentation provides flexibility in positioning each component separately and allows the handle to be removed when the blade needs to access difficult-to-reach areas.
3Ease of operation
If manual holding of the retractor is required, then the device can be positioned, but the manual burden increases and efficiency decreases
Solution Approach 1:
The retractor blade is designed to maintain its positioning through its own structural properties and the positioning mechanisms integrated into the blade assembly, reducing the need for continuous manual holding. The handle assembly provides assistance during positioning but can be detached, allowing the blade to serve itself in maintaining retraction.
Solution Approach 2:
The handle assembly is used to preliminarily position the retractor blade at the desired location and orientation. Once positioned, the handle can be detached, and the blade maintains its position through its design features, eliminating the need for continuous manual adjustment and improving surgical efficiency.
Data Source
AI summary
A retractor system includes a retractor blade and a handle assembly. The retractor blade includes a base portion, a blade extending from the base portion, and a handle mount affixed to the base portion. The handle assembly includes an attachment portion and a retaining rod. The attachment portion includes a slot configured to receive the handle mount, a first cavity adjoining the slot, a retaining member moveable along the first cavity, and a second cavity adjoining the first cavity. Advancement of the retaining rod through the second cavity and into the first cavity advances the retaining member into the slot and into engagement with the handle mount.